Table 9

Methylated primary ER-negative and ER-positive tumors: N0 and N1/N2 subgroups


N0 (n = 76)
N1/N2 (n = 54)


Genes
ER negative (n = 38)
ER positive (n = 38)
P valuea
ER negative (n = 27)
ER positive (n = 27)
P valuea

RASSF1A
18 (47%)
36 (95%)
<0.0001
18 (67%)
24 (89%)
0.0495
CCND2
16 (42%)
26 (68%)
0.021
10 (37%)
19 (70%)
0.014
GSTP1
1 (3%)
7 (18%)
0.025
3 (11%)
12 (44%)
0.0062
TWIST
11 (29%)
17 (45%)
NS
6 (22%)
15 (56%)
0.012
APC
11 (29%)
19 (50%)
NS
9 (33%)
12 (44%)
NS

aχ2 test or Fisher's exact test was used appropriately. ER, estrogen receptor; NS, not significant.

Sunami et al. Breast Cancer Research 2008 10:R46   doi:10.1186/bcr2098